JONARD TOOLS FPM-55 User manual

FPM-55
OPTICAL POWER METER W/ STORAGE
INSTRUCTION MANUAL
Unit will not turn on Faint
display on the LCD screen
1. Power is OFF
2. The battery power is too low
1. Turn the device ON by
pressing the Power Key
2. Replace the batteries
Inaccurate Measurements 1. Optical connector is not clean
2. Incorrect fiber connection
1. Clean the optical connectors
with contact cleaner
2. Ensure you are using the
correct connector and reattach
the fiber
Problem Possible Cause Solution
Keys and Functions (Continued):
Delete Key – Delete Data/Cancel
While viewing a data entry, you can press the Delete Key to delete the data.
While in Saving Mode, press the Delete Key to delete the current saved data
Units Key – Switch between dBm, dB, and W measurements
Press the Units Key to switch between absolute measurement (dBm), relative
measurement (dB), and xW of the optical power.
mW to dBm Conversion: 10 log(mW)=(dBm)
mW, uW, nW Conversion: 1 mW=103 uW=106 nW
REF Key – Stores the current power value as the reference value
Press the REF Key to store the current power value as the reference value. When pressed,
the reference value will be displayed in the top-right of the screen with “Ref” displayed
next to it.
Relative Value = l︱Absolute Value︱l -︱l Reference Value︱l
LDR LED – Intelligent Backlight Controller LED
If this LED is on, then the unit is in LDR Intelligent Backlight Control Mode. While in this
mode, the unit will automatically adjust the backlight based on the outside lighting, which
helps save power.
B/L SET LED – Backlight Mode Indication LED
If the LED is green, then the FPM-55 is in LDR Intelligent Backlight Control Mode.
If the LED is red, then the FPM-55 is in Key-Control Mode
Indicate backlight control mode. Green light indicate that “LDR”intelligent backlight control
mode, Red light indicate that key-control mode
Electric/electronic/battery powered products & force gauges 1 Year
Product Type Warranty Period
Jonard Tools Warranty:
Troubleshooting:

Introduction:
The FPM-55 is an intelligent Fiber power meter designed to measure absolute and relative
power of fiber optic cables. The meter is able to measure and store a wide range of
wavelengths to measure fiber optic cables with high precision, making it the ideal tool for
use in fiber optic networks.
FPM-55 Includes:
• Power Meter with Storage
• Manual
• Protective Cover
• 3 AA batteries
• Cotton Swabs
• 2.5 mm (PC/UPC) and 1.25 mm (PC/UPC) Adapters
Software:
You can store up to 1,000 data entries in the FPM-55. If you need to upload and
reference the data, you can download the FPM-55 software and instructions at:
https://jonard.com/FPM55
SPECIFICATIONS
Wavelengths Measured (nm) 850, 980, 1300, 1310, 1490, 1550,
1625, 1650
Detector Type InGaAs
Measurement Range (dBm) -50-+26
Uncertainty (dB) ±0.15 (3.5%)
Linearity (dB) ±0.02
Accuracy (dB) 0.01
Frequency ID (Hz) 270,︱330,︱1K,︱2K
Wave ID (nm) 1310,︱1490,︱1550,︱1625
Standard Connector FC /2.5mm universal
Optical Connector Compatibility FC/SC/ST Interchangeable/2.5 mm
universal (PC/UPC)
Alkaline battery (3) 1.5V AA
Power Adapter (V) 8.4
Battery Operating time (h) 200 without backlight
* Auto-off feature: The Auto-off feature can be turned on and off by quickly
pressing and releasing the on/off button. Its status is indicated in the upper
left-hand corner of the LCD screen. When you see a circle with a line in it this
indicates the feature is active. Quickly press and release the on/off button to
deactivate the feature.
Tel [phone] I Fax [phone] I jonard.com
Function:
Keys and Functions:
Power Key – Turn the device on or off/Change power saving mode
Long press (2 seconds) to turn the device ON or OFF
Note: The FPM-55 is initially in power saving mode and will automatically shut off after
15 minutes idle time regardless of the condition of the battery. To turn off power saving
mode, short press the Power Key. “Auto-off” will be displayed in the bottom left side of the
screen, indicating the device is not in power saving mode.
Wavelength Key – Wavelength Selection/Automatic Wavelength Identification
Short press to switch the wavelength you want to measure. 1310 nm is the default
wavelength.
Long press (2 seconds) to enter wavelength auto-identify mode. “AU” will be displayed in
the upper right side of screen, indicating the device is in auto-identify mode. Long press
the wavelength button to turn this off as well.
Backlight Key – Turn the backlight on or off
Press to turn the backlight of the device ON or OFF
Save Key – Save or view your data
The FPM-55 can store up to 1000 data entries.
Press the Save Key once to display the data saving number (for your reference), and
double press the Save Key to confirm saving.
To view the data entries, long press the save button to enter the data interface, and short
press the Save Key to view individual entries.